LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Dodge and Ram >> 2009 >> Durango Base, 3.7 K >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Powertrain Control Module (Pcm) - Electrical Diagnostics - 545RFE) >> DTC Troubleshooting >> P0882-TCM Power Input Low >> Theory Of Operation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Theory Of Operation

WARNING: This page is about a different variant/trim than selected.

The transmission control relay is used to supply power to the solenoids and pressure switches when the transmission is in normal operating mode. The relay output is fed back to the TCM through pins 16, 17, and 36. It is referred to as "Transmission Control Relay Output". This circuit does not supply power to the TCM, it is only a sense circuit. When the relay is off, no power is supplied to the solenoids and pressure switches, and the transmission is in "limp-in" or "default" mode.

NOTE: Inadequate Transmission Control Relay Output voltage can also cause DTCs P0846, P0869, P0871, P0876 or P0988 to set. This does not indicate an internal transmission or solenoid/TRS problem. Repairing the P0888 fault should also eliminate the related DTCs.
scientia non olet · About LEMON Manuals